What is the Suffix for lion or host?

There isn't a single suffix that applies to both "lion" and "host".

Here's why:

* Lion is a noun, and there isn't a common suffix used to make a word into a noun. Some suffixes might be used to create related words, like "-ess" to make "lioness", but that doesn't apply to the base word "lion".

* Host can be a noun or a verb. It doesn't have a suffix in either case.

To clarify, perhaps you're looking for something else? Could you rephrase your question?